International journal of refrigeration, Vol. 33 N° 5. International journal of refrigeration - Août 2010
| Titre : | International journal of refrigeration, Vol. 33 N° 5. International journal of refrigeration - Août 2010 |
| Type de document : | Bulletin |
| Paru le : | 18/09/2010 |
Dépouillements
Article : texte imprimé
Abhijit A. Sathe, Auteur ;
Eckhard A. Groll, Auteur ;
Suresh V. Garimella, Auteur
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This paper presents an analytical approach for modeling the transient dynamic forces in a diaphragm compressor which operates under the action of an electrostatically actuated diaphragm. An experimentally validated, quasi-static model for a diap[...]
Article : texte imprimé
Shuaihui Sun, Auteur ;
Yuanyang Zhao, Auteur ;
Liansheng Li, Auteur
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The compression process can approach the isothermal one when compressors are cooled in the compression process, and the compression work can be reduced. The paper presents a special external cooling structure for scroll refrigeration compressor.[...]
Article : texte imprimé
A new thermodynamic property model is presented for trans-1,3,3,3-tetrafluoropropene (trans-CHFdouble bond; length as m-dashCHCF3, HFO-1234ze(E)) based upon available experimental data. This model is an application of the extended corresponding [...]
Article : texte imprimé
Chen Guangming, Auteur ;
Xu Xiaoxiao, Auteur ;
Liu Shuang, Auteur
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In this paper we represent the performance of an ejector used in the CO2 heat pump water heater system by means of experimental and theoretical studies. This work accounts for the effects of primary flow pressure, entrained flow pressure and bac[...]
Article : texte imprimé
Jin Min Cho, Auteur ;
Yong Jin Kim, Auteur ;
Min Soo Kim, Auteur
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Heat transfer characteristics show different tendency according to the tube orientations such as horizontal, vertical, and inclined positions. In this study, evaporative heat transfer characteristics and pressure drop of CO2 and CO2/propane mixt[...]
Article : texte imprimé
Haitao Hu, Auteur ;
Guoliang Ding, Auteur ;
Wenjian Wei, Auteur
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Two-phase heat transfer characteristics of R410A–POE oil mixture and R22-mineral oil mixture flow boiling inside a horizontal C-shape curved smooth tube with an outside diameter of 7.0 mm and a curvature ratio of 60 were investigated experimenta[...]
Article : texte imprimé
This paper presents the heat transfer coefficients and pressure drop measured during HC-600a, HC-290 and HC-1270 saturated vapour condensation inside a brazed plate heat exchanger: the effects of refrigerant mass flux, saturation temperature (pr[...]
Article : texte imprimé
K. Dincer, Auteur ;
A. Avci, Auteur ;
S. Baskaya, Auteur
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Exergy analysis and performance of a Ranque–Hilsch Vortex Tube (RHVT) with various nozzle cross-section areas (NCSA = 3 × 3, 4 × 4, 5 × 5 mm2) were determined under inlet pressures (Pi) of 260, 300 kPa (absolute) pressurized air. The maximum dif[...]
Article : texte imprimé
Fikret Kocabas, Auteur ;
Murat Korkmaz, Auteur ;
Ugur Sorgucu, Auteur
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In this study, the effect of the nozzle number and the inlet pressures, which vary from 150 to 700 kPa with 50 kPa increments, on the heating and cooling performance of the counter flow type vortex tube has been modeled with an artificial neural[...]
Article : texte imprimé
This paper presents a numerical model conceived for a multi-physics evaluation of a magnetic refrigeration system. The model takes into account the variable magnetic field, the characteristics of the magnetocaloric materials (MCM) as well as the[...]
Article : texte imprimé
E. Hajidavalloo, Auteur ;
H. Eghtedari, Auteur
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Increasing the coefficient of performance of air conditioner with air-cooled condenser is a challenging problem especially in area with very hot weather conditions. Application of evaporatively cooled air condenser instead of air-cooled condense[...]
Article : texte imprimé
B. Kulcar, Auteur ;
D. Goricanec, Auteur ;
J. Krope, Auteur
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Due to the negative impact of refrigerants containing Cl and Br on the ozone layer, these refrigerants are being replaced with refrigerants containing fluorine. The article describes the replacing of refrigerant R22 in a cooling system for prepa[...]
Article : texte imprimé
Onder Ozgener, Auteur ;
Leyla Ozgener, Auteur
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This paper investigates some exergoeconomic parameters for an underground air tunnel system based upon some operating conditions. The ratio of exergy loss rate to capital cost (Rex) changes between 0.052 and 0.552. The total exergy losses values[...]
Article : texte imprimé
It is found that the photoelectric technology is suitable for the accurate measurement of the frost height. The objectives of this paper are to experimentally investigate the correspondence between the output signal of the photoelectric sensor a[...]
Article : texte imprimé
Son H. Ho, Auteur ;
Luis Rosario, Auteur ;
Muhammad M. Rahman, Auteur
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This paper presents air velocity and temperature distribution in a refrigerated warehouse. The refrigerated space under study has a set of ceiling-type cooling units installed in front of the arrays of stacks of palletized product packages. Nume[...]
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